Machine foe sawing stone



(No Model.)

2 Sheets-Sheet -1.

P. GAY.

MACHINE FOR SAWING STONE.

No. 311,741. Patentedf'eb. 3, 1885.

Fly.

- 2 SheetsSheet 2.

I P. GAY. MACHINE FOB. SAWING STONE.

Patented Feb. 3, 1885.

(No Model.)

Unirse raras .maar @marca rAULiN GAY, or Panis, FRANCE.

MACHINE FOR SAWING STONE.

FECIFICATION forming part of Letters Patent No. 311,741, dated February 3, 1885.

App ication liled January 24, 1883. (No model.) Patented in France July 31, 18S0, No. 138,043; in Belgium November 17, 1882, No. 59,590; in Italy December 27, 1882, No.1-l,940455; in GermanyDccember 28, 1852, No. 524,319; in Luxemburg January 2, 1883,

No. :243, and in England February 2, 1883, No. 578.

T0 all whom, t may concern.-

Be it known that I, PAULIN GAY, of Paris, France, have invented a new and useful Im provement in Machines for Sawing Stone, and of which the following is a specilicatiomtak en in connection with the accompanying drawings, in which Figures l to l0, inclusive, represent different figures of the machine, as hereinafter indicated, said drawings making a part of this specification.

Fig. lis a side view of the machine. Fig. 2 is a plan view. Fig. 3 is a side View of the sawing-roller bearing. Fig. a is a plan view ofthe same. Fig. 5 is a section of one of the supports for the sawing-roller shaft. Fig. 6 is an outline view of the same. Fig. 7 is a partial section of the sawingroller. Fig. Sis a partial ,end view of the same. Fig. 9 is a diagram of the saw and its suppciting-rollers. Fig. 10 is a diagram ofthe saws and rollers in plan.

In order to obtain in the sawing of stone, marble, &c., an uneXceptionable preciseness of work, and especially in order that the sawing-faces of the stone, marble, &c., may be free from stripes, I have combinedv an improved system of spiral saws with descending contrivance graduated by screws, by endless chain, water-pressure, or metallic strings, or any other suitable means of tension. This system will be particularly advantageous when great numbers of wires are to work at once for the division of stone or marble blocks or other substances into pieces of graduated thickness. To this effect the chief parts of the framing of the machine are so constructed as to assume the form of hollow columns A (shown in Figs. l, 2, 5, and 6) with side grooves, c, for the passage of shafts I, provided with rollers B', carrying the wires. These u prights are down wardly crossed by four screws,G, acting upon nuts D, Figs. 5 and 6, provided with bearings or collars H, in which shafts I of the sawingrollers B are fitted. Each vertical screw-head carries pinions and wheels R It, intended -to impart to the shafts I a downward motion during the course of the sawing, and an upward motion for the replacement into their former position of the sawing-rollers. These wheels or pinions R It are so combined as to obtain a graduated descent of threads m convenient for the various degrees of hardness of the stones. For this purpose, too. it is necessary to change the velocity, which is done by either changing the governing-wheel, or by means of any changeable driving-gear. Threads or wires m are placed on :a smooth roller, B', upon which are arranged a number of small grooved pulleys, B; placed apart at a distance regulated according to the requirements of the work. (See detail drawings, Figs. 7 and 9.) All these pulleys are perforated in asymmetrical point of their circumference by two fastening-keys, G, provided with aworming at each of their ends, upon which nuts and counter-nuts r r are made to move, serving for keeping steady the friction wedges or keys and the pulleys. The wires are parallel from one roller-axle to the other, but besides this position each one of them is made to assume an angular or oblique position, Figs. 9 and 10, so that at the point where they meet the tension-pulleys they are sufficiently distant from each other to receive each its respective counter-weight.

The usual sand-box forming part of my former patents has a number of openings bored in it to feed each wire. The new arrangement 'of this sawing apparatus acquires a very great importance by the multiplicity of active working parts working all at once to the effect of obtaining the maximum amount of work with a verylimited number of attendants. Imay also employ a water-power system for the descent of the wires. This system is substantially composed of four or two hollow pump bodies or columns,of any desired construction, the piston-rods of which are provided with pulleys carrying strings, made as aforesaid.

The working of this apparatus is very simple. The pump-bodies are illed up with water at the beginning of the operation. Now, all the pumps being connected together by means of a small tube common to all of them, the eduction-cock is to be opened so as to graduate the descent of the wire pulleys according to the hardness of the stone to be sawed. To this effect a dial-plate will regulate by selfact and in a most precise manner the course ofthe required operation. Should the weight of the apparatus be insufficient for the pressure to be exerted on the sawing-wires, a discharge of water, under pressure, may be brought about upon the upper face of the pistons of the said pump-bodies- I may also substitute for the screw system, to obtain a proper descent of the Wire-pulleys, either endless chains or racks, or chains with links, or simply strings made of steel wires, rolled upon or adhering to an attracting winch, combined with a number of ratchet-wheels, forming gear, and provided with suitable stop-catches.

For the winning of stonesout of quarries, I operate by means of a wire rolled upon a cylinder and auxiliary pulleys. The cylinder, which is rather wide in diameter, receives a great amount of wire on it to answer the requirements of the apparatus, acting thus on a vast extent. This roller` is supported by a water-piston, regulating its descent motion, as aforesaid.

Suitable sliding apparatuses arc arranged in the shafts, trenches, or lire-rooms. These apparatuses have screw-cranes attached to their bottoms, permitting their being established at different points, as may be desired.

Having now fully described all parts of my invention, what I claim as new is- In a machine for sawing stone, the combination of two rollers arranged on parallel shafts, vertical screws carrying bearings for the shafts of said rollers, one screw to each bearing, the said screws extending upward, provided with bevel-pinions at their upper end, longitudinal shafts carrying` correspond` ing bevel-pinions and connecting the vertical shafts on each side with a transverse shaft carrying a Worm working in corresponding gears on said longitudinal shafts, and whereby the bearings and the rollers they carry may be caused to be moved simultaneously up or down,as the case may be,endless wires ruiming around said rollers, and grooved pulleys B, arranged to guide the wires upon the said rollers, all substantially as and `for the purpose described. Y

In testimony whereofl have signed my name to this specification before two subscribing witnesses.

DAVID T. S. FULLER, ALBERT CAHEN. 

